/* ============================================================
   RABAIL ALI BHATTI — PORTFOLIO
   Professional branded theme: ink navy + signature blue
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  /* Brand palette */
  --ink: #0f1b2d;          /* deep navy ink — headings */
  --ink-soft: #283447;     /* body emphasis */
  --slate: #5b6675;        /* muted body text */
  --slate-light: #8a94a3;  /* light labels */

  --brand: #1d4ed8;        /* signature blue */
  --brand-dark: #1e3a8a;   /* darker brand for hovers */
  --brand-soft: #eff4ff;   /* tinted backgrounds */
  --accent: #0ea5e9;       /* secondary sky accent */

  --line: #e3e8f0;         /* borders */
  --line-soft: #eef2f7;

  --bg: #ffffff;
  --bg-alt: #f6f8fc;       /* section bands */
  --surface: #ffffff;      /* cards */
  --surface-tint: #f6f8fc;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 27, 45, 0.04), 0 2px 8px rgba(15, 27, 45, 0.05);
  --shadow: 0 6px 24px -8px rgba(15, 27, 45, 0.12), 0 2px 6px rgba(15, 27, 45, 0.05);
  --shadow-lg: 0 20px 48px -16px rgba(29, 78, 216, 0.18);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max: 1120px;
}

[data-theme="dark"] {
  --ink: #e8edf5;
  --ink-soft: #c8d0dc;
  --slate: #94a3b8;
  --slate-light: #64748b;

  --brand: #60a5fa;
  --brand-dark: #3b82f6;
  --brand-soft: #1e293b;
  --accent: #38bdf8;

  --line: #1e293b;
  --line-soft: #1a2332;

  --bg: #0f172a;
  --bg-alt: #131c31;
  --surface: #1a2332;
  --surface-tint: #1e293b;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2), 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 6px 24px -8px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 48px -16px rgba(96, 165, 250, 0.15);
}

[data-theme="dark"] .hero {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(56, 189, 248, 0.08), transparent 60%),
    radial-gradient(700px 400px at 5% 20%, rgba(96, 165, 250, 0.07), transparent 60%),
    var(--bg);
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "Open Sans", system-ui, sans-serif;
  background: var(--bg);
  color: var(--slate);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-sm { padding: 11px 20px; font-size: 0.88rem; }

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(29, 78, 216, 0.5);
}
.btn-primary:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -8px rgba(29, 78, 216, 0.55);
}

.btn-ghost {
  background: var(--bg);
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  padding: 16px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 11px 0;
}
[data-theme="dark"] .navbar.scrolled {
  background: rgba(15, 23, 42, 0.9);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.logo { display: flex; align-items: center; gap: 11px; font-weight: 700; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 9px;
  background: var(--brand); color: #fff;
  display: grid; place-items: center;
  font-family: "Sora", sans-serif; font-weight: 800; font-size: 0.95rem;
  letter-spacing: 0.5px;
}
.logo-text { color: var(--ink); font-size: 1.02rem; }

.nav-links { display: flex; gap: 4px; }
.nav-link {
  padding: 8px 15px; border-radius: 8px;
  font-size: 0.92rem; font-weight: 600; color: var(--slate);
  transition: var(--transition);
}
.nav-link:hover { color: var(--brand); background: var(--brand-soft); }
.nav-link.active { color: var(--brand); background: var(--brand-soft); }

.nav-cta {
  padding: 9px 20px; border-radius: 8px;
  background: var(--brand); color: #fff;
  font-weight: 600; font-size: 0.9rem;
  transition: var(--transition);
}
.nav-cta:hover { background: var(--brand-dark); transform: translateY(-2px); }

.theme-toggle {
  width: 38px; height: 38px; border-radius: 9px;
  background: none; border: 1.5px solid var(--line); cursor: pointer;
  display: grid; place-items: center;
  color: var(--slate); font-size: 1rem;
  transition: var(--transition); flex-shrink: 0;
}
.theme-toggle:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.menu-toggle span { width: 24px; height: 2.5px; background: var(--ink); border-radius: 4px; transition: var(--transition); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 170px 0 90px;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(14, 165, 233, 0.07), transparent 60%),
    radial-gradient(700px 400px at 5% 20%, rgba(29, 78, 216, 0.06), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.hero-inner { max-width: var(--max); }

.hero-greeting {
  color: var(--brand); font-weight: 600; margin-bottom: 14px; font-size: 1.02rem;
}
.hero-name {
  font-family: "Sora", sans-serif;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800; line-height: 1.08;
  color: var(--ink); margin-bottom: 22px;
  letter-spacing: -0.5px;
}
.hero-desc {
  font-size: 1.08rem; max-width: 720px; margin-bottom: 36px; color: var(--slate);
}
.hero-desc strong { color: var(--ink-soft); font-weight: 700; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 44px;
}
.stat { display: flex; flex-direction: column; align-items: center; text-align: center; }
.stat-row { display: flex; align-items: baseline; justify-content: center; gap: 2px; }
.stat-num {
  font-family: "Sora", sans-serif; font-size: 2.2rem; font-weight: 800;
  color: var(--brand); line-height: 1;
}
.stat-plus { color: var(--brand); font-size: 2.2rem; font-weight: 800; font-family: "Sora", sans-serif; }
.stat-label { color: var(--slate-light); font-size: 0.82rem; font-weight: 600; margin-top: 7px; text-transform: uppercase; letter-spacing: 0.4px; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; position: relative; }
.about, .experience, .certs { background: var(--bg-alt); }

.section-head { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; color: var(--brand);
  font-family: "Sora", sans-serif; font-size: 0.82rem; font-weight: 700;
  letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
  font-family: "Sora", sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700;
  color: var(--ink); letter-spacing: -0.3px;
}
.section-sub { color: var(--slate); margin-top: 12px; max-width: 560px; margin-inline: auto; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 52px; align-items: center; }
.about-text p { color: var(--slate); margin-bottom: 18px; }
.about-text strong { color: var(--ink-soft); }

.about-meta { margin-top: 26px; display: flex; flex-direction: column; gap: 12px; }
.about-meta li { display: flex; align-items: center; gap: 12px; color: var(--slate); font-size: 0.95rem; font-weight: 500; }
.about-meta i { color: var(--brand); width: 18px; }

.about-cards { display: grid; gap: 16px; }
.info-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 6px;
  transition: var(--transition); box-shadow: var(--shadow-sm);
}
.info-card:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: var(--shadow); }
.info-card i { font-size: 1.4rem; color: var(--brand); margin-bottom: 4px; }
.info-card h3 { font-size: 1.05rem; color: var(--ink); font-family: "Sora", sans-serif; }
.info-card p { color: var(--slate); font-size: 0.9rem; }

/* ---------- Skills ---------- */
.skills-group + .skills-group { margin-top: 38px; }
.skills-sub {
  font-family: "Sora", sans-serif; font-size: 1.05rem; font-weight: 700;
  color: var(--ink); margin-bottom: 18px; padding-left: 14px;
  border-left: 3px solid var(--brand);
}
.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.skill {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 26px 14px;
  display: flex; flex-direction: column; align-items: center; gap: 13px;
  transition: var(--transition); box-shadow: var(--shadow-sm);
}
.skill:hover { transform: translateY(-6px); border-color: var(--brand); box-shadow: var(--shadow); }
.skill i { font-size: 2.1rem; color: var(--brand); transition: var(--transition); }
.skill:hover i { transform: scale(1.12); color: var(--brand-dark); }
.skill span { font-weight: 600; font-size: 0.92rem; color: var(--ink-soft); }

/* ---------- Timeline ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 36px; }
.timeline::before {
  content: ""; position: absolute; left: 12px; top: 8px; bottom: 8px;
  width: 2px; background: var(--line);
}
.timeline-item { position: relative; margin-bottom: 26px; }
.timeline-dot {
  position: absolute; left: -36px; top: 2px;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--brand); color: #fff;
  display: grid; place-items: center; font-size: 0.72rem;
  border: 4px solid var(--bg-alt); box-shadow: 0 0 0 2px var(--brand);
}
.timeline-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 22px 26px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.timeline-card:hover { box-shadow: var(--shadow); border-color: var(--brand); transform: translateX(4px); }
.timeline-top { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.timeline-top h3 { font-family: "Sora", sans-serif; font-size: 1.1rem; color: var(--ink); }
.timeline-date { font-size: 0.82rem; font-weight: 700; color: var(--brand); background: var(--brand-soft); padding: 4px 12px; border-radius: 50px; }
.timeline-org { color: var(--brand); font-weight: 600; font-size: 0.92rem; margin: 4px 0 8px; }
.timeline-card > p { color: var(--slate); font-size: 0.92rem; }

/* ---------- Projects ---------- */
.projects-subhead {
  font-family: "Sora", sans-serif; font-size: 1.1rem; font-weight: 700;
  color: var(--ink); margin: 8px 0 18px;
}

.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 56px; }
.featured-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand); }
.featured-icon {
  width: 54px; height: 54px; border-radius: 12px;
  background: var(--brand-soft); display: grid; place-items: center;
  font-size: 1.5rem; margin-bottom: 16px; color: var(--brand);
}
.featured-card h4 { font-family: "Sora", sans-serif; font-size: 1.15rem; color: var(--ink); margin-bottom: 8px; }
.featured-card > p { color: var(--slate); font-size: 0.92rem; margin-bottom: 16px; }
.featured-card strong { color: var(--ink-soft); }

.tech-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.tech-chips span {
  font-size: 0.74rem; font-weight: 600; color: var(--slate);
  background: var(--surface-tint); border: 1px solid var(--line);
  padding: 4px 11px; border-radius: 50px;
}

.filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.filter-btn {
  padding: 9px 20px; border-radius: 8px; background: var(--surface);
  border: 1px solid var(--line); color: var(--slate);
  font-family: inherit; font-weight: 600; font-size: 0.88rem; cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover { color: var(--brand); border-color: var(--brand); }
.filter-btn.active { background: var(--brand); color: #fff; border-color: var(--brand); }

.cat-stats { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.cat-stat {
  display: flex; align-items: center; gap: 8px; padding: 8px 16px;
  border-radius: 50px; background: var(--surface); border: 1px solid var(--line);
  font-size: 0.82rem; font-weight: 600; color: var(--slate);
  transition: var(--transition);
}
.cat-stat:hover { border-color: var(--brand); color: var(--brand); }
.cat-stat .cat-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; border-radius: 50%;
  background: var(--brand-soft); color: var(--brand);
  font-size: 0.72rem; font-weight: 800;
}

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.project-card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-sm); transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.project-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: 0 12px 40px -12px rgba(29,78,216,0.25); border-color: var(--brand); text-decoration: none; }

.project-thumb {
  position: relative; height: 150px;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.project-thumb i {
  font-size: 2.8rem; color: rgba(255,255,255,0.9); position: relative; z-index: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
  transition: transform 0.3s ease;
}
.project-card:hover .project-thumb i { transform: translateY(-6px) scale(1.1); }
.project-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%); }

/* Floating dots decoration */
.project-thumb::before {
  content: ''; position: absolute; width: 80px; height: 80px; border-radius: 50%;
  background: rgba(255,255,255,0.08); top: -20px; right: -20px; z-index: 0;
}

.project-card[data-category="app"] .project-thumb { background: linear-gradient(135deg, #667eea, #764ba2); }
.project-card[data-category="tool"] .project-thumb { background: linear-gradient(135deg, #11998e, #38ef7d); }
.project-card[data-category="api"] .project-thumb { background: linear-gradient(135deg, #f093fb, #f5576c); }
.project-card[data-category="ui"] .project-thumb { background: linear-gradient(135deg, #4facfe, #00f2fe); }

/* Number badge */
.project-num {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(0,0,0,0.3); backdrop-filter: blur(8px);
  display: grid; place-items: center;
  font-size: 0.72rem; font-weight: 800; color: #fff;
  font-family: "Sora", sans-serif;
}

.project-info { padding: 18px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.project-tag {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.4px; color: var(--brand);
  background: var(--brand-soft); padding: 4px 10px; border-radius: 50px; width: fit-content;
}
.project-card h3 { font-family: "Sora", sans-serif; font-size: 1.08rem; color: var(--ink); }
.project-card p { color: var(--slate); font-size: 0.88rem; flex-grow: 1; line-height: 1.5; }

/* Tech chips */
.project-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 2px; }
.project-chips span {
  font-size: 0.65rem; font-weight: 600; padding: 3px 8px; border-radius: 4px;
  background: var(--surface-tint); color: var(--slate-light); border: 1px solid var(--line-soft);
  letter-spacing: 0.2px;
}

.project-link {
  margin-top: auto; padding-top: 8px; font-weight: 700; font-size: 0.85rem; color: var(--brand);
  display: inline-flex; align-items: center; gap: 6px; transition: gap 0.2s ease;
  border-top: 1px solid var(--line-soft);
}
.project-card:hover .project-link { gap: 11px; }
.project-card.hidden { display: none; }

/* ---------- Certifications ---------- */
.certs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.cert-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 24px 26px;
  display: flex; flex-direction: column; gap: 4px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  border-left: 4px solid var(--brand);
}
.cert-card:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.cert-card > i { font-size: 1.3rem; color: var(--brand); margin-bottom: 6px; }
.cert-card h4 { font-family: "Sora", sans-serif; font-size: 1.02rem; color: var(--ink); }
.cert-org { color: var(--brand); font-weight: 600; font-size: 0.88rem; }
.cert-date { color: var(--slate-light); font-size: 0.82rem; }

/* ---------- Contact ---------- */
.contact-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 48px;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 44px; align-items: center;
  box-shadow: var(--shadow);
}
.contact-list { display: flex; flex-direction: column; gap: 20px; }
.contact-list li { display: flex; align-items: center; gap: 16px; }
.contact-ico {
  width: 46px; height: 46px; border-radius: 11px;
  background: var(--brand-soft); color: var(--brand);
  display: grid; place-items: center; font-size: 1.05rem; flex-shrink: 0;
}
.contact-list .contact-key { display: block; font-size: 0.78rem; font-weight: 600; color: var(--slate-light); text-transform: uppercase; letter-spacing: 0.4px; }
.contact-list a { color: var(--ink-soft); font-weight: 600; transition: var(--transition); font-size: 0.96rem; }
.contact-list a:hover { color: var(--brand); }

.contact-value {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.96rem;
}

.contact-side { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.contact-cta { font-family: "Sora", sans-serif; font-weight: 700; color: var(--ink); font-size: 1.02rem; }
.socials { display: flex; gap: 12px; flex-wrap: wrap; }
.social-btn {
  width: 48px; height: 48px; border-radius: 11px;
  background: var(--surface-tint); border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 1.15rem; color: var(--slate);
  transition: var(--transition);
}
.social-btn:hover { background: var(--brand); color: #fff; transform: translateY(-4px); border-color: var(--brand); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0; background: var(--bg); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .logo-mark { width: 32px; height: 32px; font-size: 0.82rem; border-radius: 7px; }
.footer p { color: var(--slate-light); font-size: 0.86rem; }
.back-top { color: var(--slate); font-size: 0.88rem; font-weight: 600; display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.back-top:hover { color: var(--brand); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Contact Form ---------- */
.contact-form-wrap h3 { font-size: 1.1rem; margin-bottom: 16px; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; gap: 14px; }
.form-row input { flex: 1; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg); font-family: var(--font-body); font-size: 0.9rem; color: var(--ink); outline: none;
  transition: border-color 0.2s;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--brand); }
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form .btn { align-self: flex-start; }

/* ---------- Websites Grid ---------- */
.websites-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px; }
.website-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); text-decoration: none; color: var(--ink); transition: transform 0.2s, box-shadow 0.2s; display: flex; flex-direction: column; gap: 8px; }
.website-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); text-decoration: none; }
.website-icon { width: 48px; height: 48px; background: var(--brand-soft); border-radius: var(--radius-sm); display: grid; place-items: center; font-size: 1.2rem; color: var(--brand); margin-bottom: 4px; }
.website-card h3 { font-size: 1.1rem; }
.website-card p { color: var(--slate); font-size: 0.88rem; flex: 1; }
.website-tag { display: inline-block; padding: 3px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 0.72rem; font-weight: 600; color: var(--slate); text-transform: uppercase; letter-spacing: 0.3px; width: fit-content; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-card { grid-template-columns: 1fr; gap: 30px; padding: 36px; }
}

@media (max-width: 720px) {
  .nav-links, .nav-cta {
    position: fixed; top: 0; right: -100%; height: 100vh;
    width: 78%; max-width: 320px; background: var(--bg);
    border-left: 1px solid var(--line);
    flex-direction: column; justify-content: center; align-items: center;
    gap: 16px; transition: right 0.32s ease; z-index: 99; box-shadow: var(--shadow-lg);
  }
  .nav-links.open { right: 0; }
  .nav-cta { display: none; }
  .nav-link { font-size: 1.05rem; width: 100%; text-align: center; }
  .menu-toggle { display: flex; z-index: 100; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px 40px; }
  .skills-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 560px) {
  .featured-grid, .projects-grid, .skills-grid, .certs-grid, .websites-grid { grid-template-columns: 1fr; }
  .cat-stats { gap: 8px; }
  .cat-stat { padding: 6px 12px; font-size: 0.78rem; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .contact-card { padding: 28px 22px; }
  .form-row { flex-direction: column; }
  .section { padding: 72px 0; }
  .hero { padding: 140px 0 70px; }
  .stat-num, .stat-plus { font-size: 1.8rem; }
  .timeline { padding-left: 32px; }
  .timeline-dot { left: -32px; }
}